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학술지 A Phased Array Antenna Using Ferroelectric CPW Phase Shifter Active Modules
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저자
류한철, 이수재, 문승언, 곽민환, 백문철, 강광용, Seong-Ook Park
발행일
201012
출처
Ferroelectrics, v.407 no.1, pp.45-53
ISSN
0015-0193
출판사
Gordon and Breach
DOI
https://dx.doi.org/10.1080/00150193.2010.484707
협약과제
09MB1400, THz파 발진 변환 검출기 및 신호원, 강광용
초록
A phased array antenna using ferroelectric coplanar waveguide (CPW) phase shifter active modules is presented based on a Ba0.6Sr 0.4TiO3 (BST) thin film. The ferroelectric BST thin film was deposited on an MgO substrate by using pulsed laser deposition. The active module amplifies an RF signal with low noise and changes the phase of a received RF signal to control the main beam of the array antenna. It is composed of low noise amplifier (LNA), dc block, and ferroelectric CPW phase shifter. The prototype of 6×12 phased array patch antenna with the active modules using a ferroelectric phase shifter is proposed. The proposed array antenna continuously scanned its main beam in elevation plane to 32째 from its broadside direction at 11.85 GHz by applying the continuous dc voltage to the ferroelectric phase shifter. © Taylor & Francis Group, LLC.
키워드
Active module, Coplanar waveguide (CPW), Ferroelectric phase shifter, Impedance matching, Maximum beam scan angle, Noise figure, Phased array antenna
KSP 제안 키워드
85 GHz, Array patch antenna, BST thin film, Coplanar Waveguide Feeding(CPW), DC block, DC voltage, Main beam, MgO substrate, Noise Figure(NF), Phase Shifter, Pulsed-laser deposition(PLD)